STANDARDPhysics-Electromagnetic Induction
STANDARD Physics Induced EMF MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The variation of induced emf (ε) with time (t) in a coil if a short bar magnet is moved along its axis with a constant velocity is best represented as
A
Option 1
B
Option 2
C
Option 3
D
Option 4
Correct Answer
Option B
Detailed Explanation
The polarity of emf will be opposite in the two cases while the magnet enters the coil and while the magnet leaves the coil. Only in option (b) polarity is changing.
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